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<FONT color="green">001</FONT>    package metaface.server;<a name="line.1"></a>
<FONT color="green">002</FONT>    import java.util.*;<a name="line.2"></a>
<FONT color="green">003</FONT>    /**<a name="line.3"></a>
<FONT color="green">004</FONT>     *  Handler class for perform work requested by the Pool.<a name="line.4"></a>
<FONT color="green">005</FONT>     *<a name="line.5"></a>
<FONT color="green">006</FONT>     *@author     Simon Beard <a name="line.6"></a>
<FONT color="green">007</FONT>     *@version    1.0<a name="line.7"></a>
<FONT color="green">008</FONT>     *@see        metaface.client.HTTPClient<a name="line.8"></a>
<FONT color="green">009</FONT>     *@see        Pool<a name="line.9"></a>
<FONT color="green">010</FONT>     *@see        Worker<a name="line.10"></a>
<FONT color="green">011</FONT>     *@see        HTTPServerWorker<a name="line.11"></a>
<FONT color="green">012</FONT>     *@see        metaface.client.MetaFaceHTTPClient<a name="line.12"></a>
<FONT color="green">013</FONT>     *@see        MetaFaceHTTPServer<a name="line.13"></a>
<FONT color="green">014</FONT>     */<a name="line.14"></a>
<FONT color="green">015</FONT>    class WorkerThread extends Thread {<a name="line.15"></a>
<FONT color="green">016</FONT>            /**<a name="line.16"></a>
<FONT color="green">017</FONT>             *  Current worker<a name="line.17"></a>
<FONT color="green">018</FONT>             */<a name="line.18"></a>
<FONT color="green">019</FONT>            private Worker _worker;<a name="line.19"></a>
<FONT color="green">020</FONT>            /**<a name="line.20"></a>
<FONT color="green">021</FONT>             *  Current data<a name="line.21"></a>
<FONT color="green">022</FONT>             */<a name="line.22"></a>
<FONT color="green">023</FONT>            private Object _data;<a name="line.23"></a>
<FONT color="green">024</FONT>            /**<a name="line.24"></a>
<FONT color="green">025</FONT>             *  Pool of workers<a name="line.25"></a>
<FONT color="green">026</FONT>             */<a name="line.26"></a>
<FONT color="green">027</FONT>            private Pool pool;<a name="line.27"></a>
<FONT color="green">028</FONT>    <a name="line.28"></a>
<FONT color="green">029</FONT>    <a name="line.29"></a>
<FONT color="green">030</FONT>            /**<a name="line.30"></a>
<FONT color="green">031</FONT>             *  Creates a new WorkerThread<a name="line.31"></a>
<FONT color="green">032</FONT>             *<a name="line.32"></a>
<FONT color="green">033</FONT>             *@param  id      Thread ID<a name="line.33"></a>
<FONT color="green">034</FONT>             *@param  worker  Worker instance associated with the WorkerThread<a name="line.34"></a>
<FONT color="green">035</FONT>             *@param  p       Description of the Parameter<a name="line.35"></a>
<FONT color="green">036</FONT>             */<a name="line.36"></a>
<FONT color="green">037</FONT>            WorkerThread(String id, Worker worker, Pool p) {<a name="line.37"></a>
<FONT color="green">038</FONT>                    super(id);<a name="line.38"></a>
<FONT color="green">039</FONT>                    _worker = worker;<a name="line.39"></a>
<FONT color="green">040</FONT>                    _data = null;<a name="line.40"></a>
<FONT color="green">041</FONT>                    pool = p;<a name="line.41"></a>
<FONT color="green">042</FONT>            }<a name="line.42"></a>
<FONT color="green">043</FONT>    <a name="line.43"></a>
<FONT color="green">044</FONT>    <a name="line.44"></a>
<FONT color="green">045</FONT>            /**<a name="line.45"></a>
<FONT color="green">046</FONT>             *  Wakes the thread and does some work<a name="line.46"></a>
<FONT color="green">047</FONT>             *<a name="line.47"></a>
<FONT color="green">048</FONT>             *@param  data  Data to send to the Worker<a name="line.48"></a>
<FONT color="green">049</FONT>             */<a name="line.49"></a>
<FONT color="green">050</FONT>            synchronized void wake(Object data) {<a name="line.50"></a>
<FONT color="green">051</FONT>                    _data = data;<a name="line.51"></a>
<FONT color="green">052</FONT>                    notify();<a name="line.52"></a>
<FONT color="green">053</FONT>            }<a name="line.53"></a>
<FONT color="green">054</FONT>    <a name="line.54"></a>
<FONT color="green">055</FONT>    <a name="line.55"></a>
<FONT color="green">056</FONT>            /**<a name="line.56"></a>
<FONT color="green">057</FONT>             *  WorkerThread's thread routine<a name="line.57"></a>
<FONT color="green">058</FONT>             */<a name="line.58"></a>
<FONT color="green">059</FONT>            public synchronized void run() {<a name="line.59"></a>
<FONT color="green">060</FONT>                    boolean stop = false;<a name="line.60"></a>
<FONT color="green">061</FONT>                    while (!stop) {<a name="line.61"></a>
<FONT color="green">062</FONT>                            if (_data == null) {<a name="line.62"></a>
<FONT color="green">063</FONT>                                    try {<a name="line.63"></a>
<FONT color="green">064</FONT>                                            wait();<a name="line.64"></a>
<FONT color="green">065</FONT>                                    } catch (InterruptedException e) {<a name="line.65"></a>
<FONT color="green">066</FONT>                                            e.printStackTrace();<a name="line.66"></a>
<FONT color="green">067</FONT>                                            continue;<a name="line.67"></a>
<FONT color="green">068</FONT>                                    }<a name="line.68"></a>
<FONT color="green">069</FONT>                            }<a name="line.69"></a>
<FONT color="green">070</FONT>                            if (_data != null) {<a name="line.70"></a>
<FONT color="green">071</FONT>                                    _worker.run(_data);<a name="line.71"></a>
<FONT color="green">072</FONT>                            }<a name="line.72"></a>
<FONT color="green">073</FONT>                            _data = null;<a name="line.73"></a>
<FONT color="green">074</FONT>                            stop = !(pool._push(this));<a name="line.74"></a>
<FONT color="green">075</FONT>                    }<a name="line.75"></a>
<FONT color="green">076</FONT>            }<a name="line.76"></a>
<FONT color="green">077</FONT>    }<a name="line.77"></a>
<FONT color="green">078</FONT>    <a name="line.78"></a>




























































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